Covalent anchoring functional molecule to the silicon nanowire surface is one of the important strategy to obtain novel nanomaterials for silicon nanodevice. But a serious problem for this surface modified is the uncontrollably oxide of the surface of silicon nanowire in the modification process. Therefore, it is highly desired to find a mild method for the modification of silicon nanowires. In this paper, we covalently attached pyrene molecules onto the silicon nanowires surface through forming Si-O-C bond via reaction of Hydroxyl-( from the functional molecule) with Si-H (on the silicon nanowire surface). The product was characterized by ATR-FTIR; in addition, its fluorescence behavior was also investigated.%将功能分子共价链接于硅纳米线表面,是发展硅纳米线性能,获得新的硅纳米线器件材料的重要手段.但是对硅纳米线表面的修饰却存在产生不可控制的表面氧化层的缺点,因此有必要发展一种温和的新方法.本文通过羟基(-OH)与硅纳米线表面Si-H键反应生成Si-O-C键,从而在硅纳米线表面引入功能分子.并通过芘醇分子在硅纳米线表面的固定化,证明了这一方法能够温和地实现对硅纳米线表面的共价键修饰.
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